#define _CRT_SECURE_NO_WARNINGS 1

#include <stdio.h>


int n_k(int n, int k)
{
	int a = n;
	while (k--)
	{
		n = n * a;
	}
	return n / a;
}


int main()
{
	printf("%d\n", n_k(2, 4));
}